Group of translucent colorless, rhombic Baryte crystals, set aesthetically upon a matrix of orpiment. The rhombs are covered in the upper side with a large number of very small orpiment and several larger realgar crystals. Overall size: 93 mm x 66 mm x 37 mm. Major Baryte crystal: 33 mm long, 11 mm thick. Weight: 290 g.

Pale green octahedral fluorite crystal, complete all around, on a matrix of quartz, accompanied by hübnerite. Overall size: 65 mm x 65 mm x 56 mm. Fluorite crystal size: 35 mm on edge. Weight: 202 g. The crystal of fluorite is green in the inside and almost colorless in the outer part, near the surface, which says something interesting about the history of the specimen. With strong rear illumination the hübnerite shows red translucency.

Carles:
What an outstanding specimen. And its nice to see you posting again after an absence. I really enjoy looking at your specimens, and I am so glad you live in Europe so we don't have to compete for the same kinds of specimens ;=))
Bob

Group of several green augelite crystals on quartz. The largest is doubly terminated and 25 mm long. Overall size: 61 mm x 61 mm x 51 mm. Weight: 115 g. From a recent find in the Tamboras area, at 5500 m above the sea level.

From The Mineralogical Record, March-April 2011, vol. 42/2, page 141: These specimens [augelite from Mundo Nuevo] are probably the world's finest for the species, with crystals as large as the largest known from Rapid Creek, Yukon, and from the Champion mine, California.

Group of octahedral {111}, bright metallic black color, alabandite crystals partially coated with pink microcrystalline rhodochrosite. From a new pocket found on late February 2011 next to the area where the silver ore is being worked. It shows some spinel law twins. Size: 60 mm x 59 mm x 46 mm. Major crystal: 20 mm tall, 14 mm on edge. Weight: 204 g.

From The Mineralogical Record, January-February 2011, vol. 42/1, page 73: The specimens from this pocket represent the highest quality ever seen for this species.

i suppose 1274 grams of assembled pyrite crystals are quite fragile ... How do you prevent this specimen from breaking apart? Is it fixed somehow? Or does the polycyanoacrylate make it stable?

I do nothing at all to prevent it from breaking. People at the mine have much experience with polycyanoacrylate, and are using a special kind of this glue that supports, they say, up to 300 kg/cm², which is a lot. For several years this pyrite had been standing in my showcase in the least stable position, only one cube in contact with the base, the others directed upwards, as you can see in the photo below, without any problem of breaking apart and dropping. However, it is currently resting in a much more stable horizontal position, as seen above.

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